217 results about "Yaw system" patented technology

The invention discloses a matrix yaw system of a wind power plant. The matrix yaw system comprises a data acquisition module, a wind plant modeling module, a parameter extraction module and a yaw control module. The data acquisition module acquires a wind field original data set containing three-dimensional space coordinates and timestamps by using a multi-source sensor; the wind field modeling module calculates correlation between points by combining a covariance function through a Gaussian process regression algorithm, and constructs a three-dimensional dynamic wind field model; the parameter extraction module is used for extracting wind regime parameter vectors in the model by adopting a nearest neighbor interpolation algorithm on the basis of actual space coordinates of a fan; and the yaw control module utilizes a depth deterministic strategy gradient reinforcement learning model to generate a yaw angle adjustment instruction in combination with the wind regime parameter vector, the current yaw state of the fan and a preset maximum cumulative reward function. Through multi-module cooperation and intelligent algorithm optimization, accurate matching of wind field dynamic modeling and yaw control is achieved, and the energy efficiency and operation stability of the wind generating set are improved.

The invention discloses a yaw wind error compensation method and system based on wind measurement data, and relates to the technical field of wind power generation equipment control, and the method comprises the steps: setting a wind measurement point position, and collecting an original wind field data set; calculating an incoming flow and a cabin wind direction angle according to the original wind field data set; performing deviation calculation to obtain a yaw wind error angle; triggering a dual-channel compensation module, accumulating errors, constructing an error queue, and performing batch compensation to obtain a compensation result; yawing control parameters are called, the cabin attitude is analyzed according to the compensation result, the yawing control parameters are updated, and self-adaptive compensation of yawing to the wind error is achieved. The technical problems that in the operation process of the wind driven generator, due to wake flow, terrain, turbulent flow and other environmental factors and equipment loss, a traditional yaw system cannot accurately detect the wind direction and compensate the wind alignment error, the power generation efficiency is low, and the potential safety hazard of equipment is large are solved, and the purposes of accurately improving the wind alignment precision of a wind wheel and improving the power generation efficiency are achieved. The power generation efficiency is obviously improved; and the equipment operation safety is enhanced.

The present invention discloses a method, system, medium and device for eliminating the vortex-induced vibration of fan blades. This method adds a strategy for eliminating vortex-induced vibration to the main control program of the fan through the PLC main controller, and can eliminate the vortex-induced vibration of the fan blades when the fan is not powered off and in a shutdown state. If the main control program detects that the fan needs to execute the strategy for eliminating vortex-induced vibration, it controls the pitch system of the fan to execute the pitch vibration elimination strategy in the strategy for eliminating vortex-induced vibration; if the pitch vibration elimination strategy fails to execute, the main control program controls the yaw system of the fan to execute the yaw vibration elimination strategy in the strategy for eliminating vortex-induced vibration, and finally successfully makes the wind speed and vibration value of the fan meet the preset conditions, eliminating the vortex-induced vibration to protect the safety of the fan blades; the present invention can control the fan to execute pitch or yaw vibration elimination actions in the non-powered-off shutdown state of the fan, so as to destroy the periodicity of vortex shedding, suppress the increase of vibration, achieve the purpose of eliminating vortex-induced vibration, and protect the safety of the fan blades.

The invention relates to the technical field of wind generating set yaw system lubrication, in particular to a wind generating set yaw gear partition lubrication method which comprises the steps that area division is conducted, specifically, the working face of a yaw gear is evenly divided into an upper independent lubrication area, a middle independent lubrication area and a lower independent lubrication area in the axial direction; performing exposure detection; grading judgment: judging whether an oil outlet hole of the grease injection pinion needs to be blocked or not for the exposed area based on the exposed area proportion and a preset judgment threshold value, and determining the area needing to be blocked; for the non-exposed area, the lubricating grease covering thickness is detected through thickness detection equipment, the film thickness proportion is calculated, and the area needing to be plugged and the number needing to be plugged are determined according to the film thickness difference proportion; and executing the operation. According to the invention, through dynamic plugging of the oil outlet holes, precise regulation and control of the lubrication amount in the tooth width direction are realized, so that the lubrication uniformity is improved, and waste and pollution caused by accumulation of grease on the lower side are reduced.

The invention provides a yaw anomaly detection method, device, equipment and medium for a wind driven generator, and the method comprises the steps: collecting sensor parameters of the wind driven generator in real time, and carrying out the preprocessing of the sensor parameters as operation data; building a digital twinborn model, namely building a physical model of a yaw system based on a mechanical structure, a dynamic principle and an electrical characteristic of the wind driven generator, and building a data driving model by adopting machine learning and deep learning algorithms based on operation data of the wind driven generator; using the trained machine learning model to classify and predict the operation data; inputting the operation data into the digital twinborn model to simulate the actual operation state of the wind turbine generator, obtaining a predicted value, comparing the predicted value with an actual measurement value, and when an error exceeds a preset threshold value, detecting that the wind turbine generator has yaw abnormity, the problem that the service life of equipment is damaged due to the fact that a wind turbine generator yaw control system cannot accurately obtain the real operation state of a yaw system of a wind turbine generator is solved.

The invention relates to the technical field of new energy, and discloses an optimization method for an intelligent yaw system of a wind generating set, and the method comprises the steps: building the intelligent yaw system, enabling the system to be internally provided with seven modules, and enabling a multi-sensor data collection module to collect wind direction, wind speed and yaw angle data in real time, the data fusion module performs Kalman filtering fusion processing to obtain a high-confidence state estimation value, the intelligent decision output module generates an optimal yaw control instruction by adopting a multi-mode control strategy and a parameter self-adaptive mechanism based on fused data, an execution mechanism is driven to realize accurate wind alignment, and the system integrated hardware-in-the-loop test module is used for realizing accurate wind alignment. Omnibearing verification can be carried out before deployment, after actual operation, operation indexes are continuously monitored through the performance evaluation module, control parameters and fusion algorithm parameters are adjusted online through the optimization module on the basis of methods such as machine learning, closed-loop optimization is formed, finally, yaw precision, response speed and system stability are remarkably improved, and maintenance cost is reduced.

The invention relates to the technical field of mechanical fault diagnosis and signal processing analysis, in particular to a yaw speed reducer monitoring and diagnosis method for dealing with intermittency and variable working conditions, which comprises the following steps: S1, acquiring a vibration signal of a yaw speed reducer of a wind turbine generator; s2, according to the amplitude difference of the vibration signals in the action period and the non-action period of the yaw speed reducer; s3, the identified effective vibration signals are amplitude-modulated and frequency-modulated signals, and rotating speed information is estimated by adopting a ridge extraction method based on a cost function; s4, integrating the estimated rotating speed and the identified effective vibration signal; s5, calculating the theoretical fault feature order of each component according to the structural parameters of the speed reducer; according to the method, the adverse effect of intermittent action of the yaw system on data acquisition, storage and monitoring diagnosis is overcome, the feature order corresponding to the fault type is accurately represented, and the adverse effect of the time-varying operation condition of the yaw speed reducer on fault feature extraction and recognition is avoided.

The utility model discloses a yaw system simulation test bench with multi-degree-of-freedom loading, which comprises a bottom platform, a base, a rotating device, a load transmission device, a yaw system, two axial hydraulic loading devices, a radial hydraulic loading device and a control system, the load transmission device is supported on the bottom platform through the two axial hydraulic loading devices, an upper-layer yaw brake of the yaw system is fixed to the bottom of the load transmission device, a lower-layer yaw brake of the yaw system is fixed to the top of the base, and the rotating device is arranged between the load transmission device and the base. The radial hydraulic loading device is fixed to the bottom platform and makes contact with the peripheral face of the rotating device in an attached mode, and the control system is electrically connected with the yaw system, the two axial hydraulic loading devices and the radial hydraulic loading device. According to the utility model, the test reliability of the yaw system of the wind turbine generator can be effectively improved.

The invention discloses a fan yaw gear cleaning device, and relates to the technical field of fan yaw gear cleaning, the fan yaw gear cleaning device comprises a cabin unit, and the cabin unit comprises a cabin, a fluted disc, a tower drum and a driving part; the cleaning unit comprises a mounting ring, a monitoring assembly, a connecting assembly and a cleaning assembly. According to the yaw gear cleaning device, the cleaning efficiency and reliability of the yaw gear are remarkably improved through elastic coupling transmission and a self-adaptive attaching structure of the cleaning unit. When the yaw system operates, the scraper piece is synchronously driven to move. The rack of the scraper piece and the sliding plate achieve elastic reset through the spring, it is guaranteed that the scraper is attached to the tooth groove all the time, clean contact can be maintained even under the condition that the tooth face inclines or oil dirt is accumulated, and insufficient scraping force or local overload is avoided. In addition, the arc-shaped flow guide design of the arc plate is matched with tooth grooves of the fluted disc, a closed waste collecting cavity is formed, waste diffusion in the cleaning process is effectively prevented, and the collecting efficiency is improved.

The invention discloses a fan yaw automatic correction method and device based on static and dynamic deviation coupling. The fan yaw automatic correction method comprises the steps that historical operation data of a fan SCADA system is read within a preset time period; working condition segmentation is carried out on the operation data, and shutdown, power limiting, full power generation and climbing working conditions are identified; dividing the climbing working condition data into bins according to wind facing angle intervals, constructing wind speed-power curves of all the intervals, and comparing curve areas; performing yaw deviation quantitative analysis on the climbing condition data; wind direction signals of an existing ultrasonic anemorumbometer and a newly-added mechanical anemorumbometer of the fan are collected, and the mean value of the two wind direction signals is taken as a dynamic reference wind direction; and coupling the target yaw deviation angle with the dynamic reference wind direction to generate a corrected wind direction value, converting the corrected wind direction value into an analog current signal, outputting the analog current signal to a DCS (Distributed Control System), and driving a fan yaw system to automatically execute wind correction. According to the invention, through dual-sensor data fusion and comprehensive quantitative modeling of static and dynamic deviation, the wind facing precision and the power generation efficiency of the wind turbine are improved.

The invention provides a dynamic yaw error compensation method and system based on a cabin type wind lidar. The method comprises the following steps: firstly, acquiring three-dimensional wind field data at a preset distance in front of a wind turbine, simultaneously acquiring operation state parameters of the wind turbine, then extracting unstable transverse component and longitudinal velocity gradient distribution in an incoming wind flow direction, and then calculating a real-time yaw error amount caused by dynamic change of a wind field; and converting the real-time yaw error amount into a feed-forward compensation control signal by combining the dynamic response characteristic of the yaw system of the wind turbine, finally inputting the feed-forward compensation control signal into a main controller of the wind turbine, and adjusting an angle set value of the yaw system so as to complete yaw error compensation of the laser radar. According to the technical scheme, the alignment precision, the wind energy capturing efficiency and the operation stability of the wind generating set under the complex changing wind condition are improved, and high-precision and high-reliability compensation of the dynamic yaw error is achieved.

The utility model provides a yaw electromagnetic damping device and a yaw system of a wind generating set, the yaw electromagnetic damping device comprises: an electromagnet arranged on one of a tower drum and a main frame; the magnetic matching piece is arranged on the other one of the tower drum and the main rack, and the electromagnet and the magnetic matching piece can form magnetic attraction and / or repulsion in a power-on state; the power supply device is electrically connected with the electromagnet and can provide current for the electromagnet; and the control device is in signal connection with the power supply device and can control the output current of the power supply device. According to the yaw electromagnetic damping device provided by the embodiment of the invention, hydraulic oil leakage and dust cannot be generated, and environmental protection is facilitated; the friction plate or the sliding pad does not need to be replaced in the life cycle of the unit, so that the workload of the maintenance personnel is reduced, and the operation and maintenance cost is reduced; damage to the large yaw gear ring and the yaw motor can be reduced, and consumption of spare parts of a unit is reduced.

The application discloses a kind of wind turbine yaw system electromagnetic brake online monitoring method, comprising the following steps: S1, the current data of electromagnetic brake output in the automatic yaw operation process of wind turbine is collected;S2, in the preset acquisition module of wind turbine nacelle control cabinet, the current data collected is transmitted to the computing device in the tower base of wind turbine by acquisition module;S3, the current data is analyzed in real time by the internal program of computing device, and the deviation degree of electromagnetic brake current is calculated, the running state of wind turbine yaw system electromagnetic brake is judged according to the deviation degree, and the running state is fed back to the main control of wind turbine;The application can monitor the health status of yaw system in real time online, ensure that unit safe and stable operation, find electromagnetic brake action failure condition in advance, effectively reduce the replacement maintenance cost caused by yaw subcomponent damage, and avoid long stop risk caused by unit maintenance process.

This utility model relates to the field of wind power yaw technology and discloses a waste oil collection device for the maintenance of a wind turbine yaw system. The device includes a yaw main wheel and a track component. The track component includes a calibration plate with a fixing groove at the top. A fixing component is inserted into the inner wall of the fixing groove, and a snap-fit ​​component is fixed to the bottom of the inner wall of the fixing groove. A snap-fit ​​groove is formed at the bottom of the fixing component, and the inner wall of the snap-fit ​​groove is snap-fitted to the surface of the snap-fit ​​component. A sloping shovel is fixed to the side of the fixing component away from the calibration plate, and a backhoe is fixed to the side of the sloping shovel closer to the bottom of the calibration plate. This utility model secures the fixing component to the fixing groove of the calibration plate, ensuring that the bottom of the sloping shovel and the backhoe are tightly fitted to the top of the calibration plate. Thus, during the forward rotation of the yaw main wheel, the sludge on the inner wall of the yaw main wheel is scooped up by the sloping shovel, and the backhoe similarly scoops up the sludge during the reverse rotation. Workers only need to clean the sloping shovel and backhoe periodically.

The present invention belongs to the technical field of maintenance of the wind turbine yaw system, and discloses an auxiliary device for repairing the wind turbine yaw brake disc, including a rotating table. A first motor is fixedly connected to the middle of the interior of the rotating table. Both the left and right sides of the first motor are fixedly connected with rotating rods. The other sides of the rotating rods are respectively hinged with movable rods. The other sides of the movable rods are hinged with connecting rods. A grinding device is hinged to the top of the connecting rod. Through the cooperation of structures such as the first motor, the rotating rods, the movable rods, the connecting rods, and the grinding device, the device is convenient for removing rust from nuts. The first motor drives the rotating rods to rotate, the rotating rods drive the movable rods, the movable rods can first drive the connecting rods to jack up, then the movable rods drive the connecting rods to move downward, the connecting rods drive the movable pipes to move downward, and the movable pipes can drive the grinding plates to reciprocate up and down through the limiting columns, so as to remove rust and polish the surface of the nuts.

This invention relates to the field of wind power generation technology, specifically to a hydraulic control structure, a wind turbine yaw system, a control method, and a wind turbine generator set. The hydraulic control structure is suitable for connection to a yaw brake hydraulic circuit. The hydraulic control structure is configured such that: when the average wind speed within a preset time is greater than a preset wind speed, the output pressure of the hydraulic control structure is maintained at a preset pressure; and / or, when the average wind speed within a preset time is less than a preset wind speed and the power of the wind turbine generator set is less than a preset power, the output pressure of the hydraulic control structure changes proportionally between zero and the preset pressure. This invention can adjust the output pressure of the hydraulic control structure according to the wind speed, ensuring yaw stability, reducing wear on the yaw brake, and extending its service life.

This invention discloses an aerodynamic test bench adapted to horizontal / vertical axis wind turbines, including a base and a connecting column. The connecting column is located on top of the base, and a test platform is provided above the connecting column. The test platform includes a horizontal bar, and one end of the horizontal bar is provided with... T The horizontal bar has a vertical bar at the other end. T A square platform is mounted on top of the support frame; a dynamic torque sensor is mounted on the square platform, with one end connected to a magnetic powder brake and the other end connected to a wind turbine fixing rod. This invention also discloses an aerodynamic testing method adapted to horizontal / vertical axis wind turbines, including: wind turbine type adaptation installation, basic aerodynamic performance testing (no yaw), yaw condition aerodynamic performance testing, and variable load condition aerodynamic performance testing. T The bracket enables rapid switching between horizontal and vertical axis wind turbines. The combination of a precise yaw system and stepless load adjustment can simulate various complex working conditions such as constant wind speed with varying load and constant load with varying yaw angle.

The invention discloses a yaw control method based on data driving and multi-objective optimization, and the method comprises the steps: dividing a wind speed interval: according to the wind resource characteristics, yaw behavior, wind direction distribution characteristics, wind speed frequency distribution, turbulence intensity in different wind speed intervals, and the influence of a yaw deviation angle on output power in different wind speed intervals of a mountain wind power plant, determining the wind speed interval of the mountain wind power plant; the wind speed range below the rated wind speed is divided into a low-speed stable interval of 3-6 m / s, a medium-speed optimization interval of 6-8 m / s and a high-speed balance interval of 8-11 m / s. A data driving and multi-objective optimization algorithm is adopted, so that the yaw system can flexibly adjust yaw control parameters in real time according to dynamic changes of the wind speed, the wind direction and the turbulence intensity. No matter whether the wind direction changes suddenly or the turbulence intensity fluctuates, the yaw system can make a response rapidly, and it is ensured that the wind turbine generator is in the best windward state all the time.

The invention provides a wind generating set yaw system brake disc wear milling and repairing device which comprises a motor, a first belt pulley connected with an output shaft of the motor, a support arranged below the motor and on the outer side of the first belt pulley, a second belt pulley connected with the first belt pulley through a belt, and a rotating shaft connected with the second belt pulley through a bearing. The milling disc is connected with one end of the rotating shaft through a bearing; the limiting disc is matched with the rotating shaft through a bearing, the sleeve base is fixed to the limiting disc through a positioning bolt, the sleeve is arranged on the inner wall of the sleeve base, the connecting piece is arranged at the bottom of the sleeve and matched with the rotating shaft and the milling and repairing disc, and the hydraulic buffering device is arranged on the inner wall of the sleeve. By means of the scheme, a complex mechanical transmission chain and a multi-stage speed reduction mechanism in a traditional device are avoided, the stability of power transmission and the milling and repairing precision are ensured, high reliability, low energy consumption and high universality are achieved, the maintenance cost is greatly reduced, and reliable guarantee is provided for long-acting and stable operation of wind power generation equipment.

This invention discloses a gear ring fixing structure for a combined drive yaw system of a wind turbine generator. The yaw system employs two yaw gear rings: an outer yaw gear ring and an inner yaw gear ring. The meshing surface of the outer yaw gear ring is the external tooth surface, and the meshing surface of the inner yaw gear ring is the internal tooth surface. Each of the two yaw gear rings is individually meshed and driven by an independent yaw motor. The gear ring fixing structure includes a gear ring fixing flange and friction gaskets. The inner yaw gear ring has a flange hole and is connected to the gear ring fixing flange by bolts. The outer yaw gear ring does not have a flange hole, and a friction gasket is placed between its bottom surface and the top surface of the gear ring fixing flange. The horizontal and vertical displacement of the outer yaw gear ring is restricted by the aforementioned bolts. The gear ring fixing flange is connected and fixed to the tower flange of the wind turbine generator by bolts. This invention effectively connects and fixes the two yaw gear rings without affecting installation and commissioning.

The invention discloses a yaw self-checking system and self-checking method for a wind generating set, and relates to the technical field of wind driven generators. The yaw self-checking system comprises a sensing system, a data collector and a data analysis module; the sensing system comprises displacement sensors and current sensors, the current sensors are installed on power supply lines of yaw driving motors, and each driving motor is provided with at least one current sensor; the displacement sensor is installed on a front rack of the wind generating set, the tooth top of a yaw bearing gear ring serves as an induction reflection face, and the displacement sensor is an eddy current sensor. The data acquisition unit is used for acquiring real-time current signals of each displacement sensor and each current sensor; the data analysis module is used for analyzing the real-time current signals of the displacement sensor and the current sensors collected by the data collector, obtaining a fault analysis result and sending the fault analysis result to the master control system. Through active driving detection in a shutdown state and in combination with synchronous analysis of current and displacement, accurate identification of yaw driving motor system faults and gear ring jumping can be realized, and early diagnosis and early warning of the faults of the yaw system are realized.

The invention relates to the technical field of generator fault prediction, in particular to an extreme weather power generation equipment fault prediction method based on a time sequence large model, and the method comprises the steps: synchronously collecting multiple parameters; judging an abnormal event; identifying trend types; risk level assessment; adjusting a dynamic threshold value; and risk sequence prediction and early warning. A plurality of parameters which are closely related to structural load, electrical disturbance and thermal-lubrication states are introduced through the three-axis vibration peak value in the middle of a blade, the oil viscosity of a gearbox, the current harmonic wave of a stator, the starting torque increment of a yaw system, the wind speed change rate of the top of a cabin and the temperature rise rate of a main shaft bearing; full-chain monitoring of the operation state of the wind turbine generator in the strong wind extreme weather is achieved, and the problems that due to incomplete monitoring parameter coverage and fixed threshold value setting, lubrication abnormity trend recognition lags behind in the extreme weather, fault early warning is not timely, and the unit shutdown loss is aggravated are effectively solved.

The invention discloses a wind turbine generator yaw control method, device and equipment and a medium, is applied to a wind turbine generator yaw system and relates to the field of automation, and the method comprises the steps that whether load reduction yaw is triggered or not is determined according to the running state of a wind turbine generator and environmental wind power data, if yes, a current target time node is recorded, and a corresponding load reduction preparation mark is set; determining whether a preset load shedding yaw condition is met or not based on the operation state of the wind turbine generator, the environmental wind power data, the target time node and the load shedding preparation mark, and setting the current load shedding yaw mark as a first mark or a second mark according to the met condition; if the mark is the first mark, directly executing the load reduction yaw operation, and if the mark is the second mark, adjusting the current rotating speed of the engine, and executing the load reduction yaw operation after the rotating speed is smaller than a preset rotating speed threshold value; and if the load shedding yaw operation is completed, setting the current load shedding yaw mark as a second mark. Therefore, yaw control can be carried out through an intelligent load reduction yaw control means.

This disclosure provides a hydraulic yaw system and a wind turbine generator set. The hydraulic yaw system includes: a hydraulic motor having a first inlet / outlet and a second inlet / outlet; a digital servo valve, with a first port and a second port connected to the second inlet / outlet and the first inlet / outlet, respectively; a mechanical feedback mechanism, with its input end connected to the output shaft of the hydraulic motor and its output end coupled to the valve core of the digital servo valve; a hydraulic drive module connected to a third port of the digital servo valve and supplying hydraulic oil to the hydraulic motor via the digital servo valve; and a hydraulic oil collection module connected to a fourth port of the digital servo valve. The hydraulic yaw system of this disclosure enables passive yaw in the event of a power outage.

The application discloses a three-wind-wheel floating type wind turbine generator structure and an automatic wind alignment control method. The system comprises a floating foundation, a main wind turbine generator set without a yaw system, an auxiliary wind turbine generator set without a yaw system and a single-point mooring system. The floating foundation comprises an upwind arm and a downwind arm. One end of the upwind arm is connected with one end of the downwind arm. An included angle is formed between the upwind arm and the downwind arm and between the downwind arms, and the downwind arms are symmetrically arranged. The main wind turbine generator set is arranged at the connection between the upwind arm and the downwind arm. The auxiliary wind turbine generator set is arranged at one end of the corresponding downwind arm away from the upwind arm. The single-point mooring system is arranged at one end of the upwind arm away from the downwind arm. The application has the advantages of low cost and high wind alignment precision.

The invention provides a method and a device for fault diagnosis of a yaw system in a wind turbine, and relates to the technical field of wind turbines. The method comprises the following steps: acquiring monitoring data collected in a yaw system, inputting the monitoring data into a yaw fault diagnosis model, and outputting a fault diagnosis result, wherein the fault diagnosis model is obtained by training known fault diagnosis results and corresponding monitoring data, and the fault diagnosis result comprises at least one of the following: the position of a yaw sensor is shifted, the yaw sensor is damaged, the yaw contactor is stuck, the hardware of a yaw motor / reducer is damaged, and the yaw motor is braked, In the working process, the monitoring data collected by the yaw system can be input into the yaw fault diagnosis model in real time, and the yaw fault diagnosis model can be used to determine whether the yaw system has a fault and the specific fault diagnosis results when the fault occurs. In this way, the operation and maintenance personnel can be prevented from going to the aircraft seat for inspection, and the fault diagnosis efficiency of the yaw system can be improved.

The utility model relates to a wind turbine generator and a yaw system. The wind turbine generator comprises a control module and a first solid-state relay. The control module is used for outputting a first control signal; and the first solid-state relay is used for connecting the yaw half-release electromagnetic valve and the power supply module and conducting connection between the yaw half-release electromagnetic valve and the power supply module under the condition of receiving the first control signal so as to conduct a power supply circuit between the power supply module and the yaw half-release electromagnetic valve, so that the yaw half-release electromagnetic valve adjusts the yaw pressure. According to the wind turbine generator set, the first solid-state relay is adopted, the solid-state relay completes the contact function through the solid-state device and can work in the high-impact and vibration environment, the reliability of the wind turbine generator set is improved, and the service life of the wind turbine generator set is prolonged.

The embodiment of the invention relates to the technical field of wind power control, and provides a wind turbine generator yaw limit position protection method and device, electronic equipment and a medium. The method comprises the steps that the yaw speed of a wind turbine generator is responded to reach the rated speed; according to the pulse statistical values of the yaw counter corresponding to the starting moment and the stopping moment of the yaw, the corresponding cabin yaw speed actual value is calculated; calculating a yaw speed reference value of the cabin according to the working parameters of the yaw system; and comparing the actual value of the cabin yaw speed with the reference value of the cabin yaw speed, and protecting the yaw limit position according to the comparison result. According to the embodiment of the invention, on the premise that hardware equipment is not changed, the yaw limit position can be protected, and the cable safety and the operation safety of the wind turbine generator are ensured.